TMS & Spravato Psychiatry Care Gilbert
Gilbert Chandler Psychiatrists provides thoughtful, evidence-based mental health care for adults seeking long term, effective treatment for mental health related conditions. Our clinic is led by Dr. Mark Feinstein, DO, Psychiatrist, and Brittany Khoury, PMHNP, who focus on individualized treatment, clear communication, and long-term stability—not rushed visits or one-size-fits-all care.
With 40+ years of combined clinical experience, our providers have helped 1,000+ patients navigate complex mental health challenges.
Specialties: Psychiatry, medication management, Spravato® (esketamine), TMS, psychotherapy
Experience: Care for depression, treatment-resistant depression, anxiety disorders, OCD, trauma-related conditions, mood disorders, and adult ADHD
Clinical Approach: Patient-centered care built on trust, collaboration, and evidence-based treatment planning
Serving: Gilbert, Chandler, Scottsdale, Phoenix, and Mesa, AZ
Awards & Recognitions
Verified Reviews
Insurance Accepted
We accept most major insurance plans that include coverage for Psychiatrist. You can select your provider from our list of accepted insurances. Even if you don’t see your insurance listed, reach out to us to confirm if your plan is accepted. Additionally, we offer discounted and sliding-scale rates for seniors and patients without insurance.
Aetna, BlueCross BlueShield, L&I, Lifewise, Medicare, Premera, Regence/HMA, VA, Kaiser Permanente, UnitedHealthcare, Humana.
Meet Our Care Providers
Dr. Mark Feinstein, DO
Psychiatrist | Medical Director
Dr. Mark Feinstein is a board-certified psychiatrist with over 35 years of clinical experience treating complex mental health conditions. His background includes extensive work with mood disorders, trauma, OCD, and patients who have not responded to standard treatments.
Dr. Feinstein is known for his comprehensive evaluations and whole-person approach. He takes time to understand each patient’s medical history, psychological background, and life context before recommending treatment. His care philosophy emphasizes accuracy in diagnosis, careful medication management, and collaboration with therapy and advanced interventions when appropriate.
Patients value his calm presence, depth of knowledge, and commitment to long-term outcomes—not quick fixes.
Brittany Khoury, PMHNP
Psychiatric Mental Health Nurse Practitioner
Brittany Khoury is a Psychiatric Mental Health Nurse Practitioner who provides compassionate, trauma-informed care for adults in Gilbert and Chandler, Arizona. Her clinical approach integrates psychiatric evaluation, psychotherapy, and skills-based support to help patients feel safe, understood, and empowered.
She has advanced training in CBT, DBT, ACT, Internal Family Systems (IFS), mindfulness-based therapy, and CBT-I for insomnia, with additional specialization in ADHD, substance use disorders, women’s mental health, and veteran and military mental health. Brittany emphasizes collaboration and patient autonomy, ensuring treatment plans align with each individual’s goals and readiness for change.
Patients often describe her care as grounded, non-judgmental, and deeply supportive.
Credentials
Book An Appointment
We provide complimentary consultation. One of our experienced doctors will discuss your concerns and provide guidance.
Call Us on (480) 256-9322 or fill the form below to receive a call back.
What We Treat?
Persistent low mood, loss of interest, fatigue, and hopelessness that impacts daily life. We treat both first-episode depression and cases that haven’t improved with traditional medications or therapy.
Chronic worry, restlessness, panic attacks, and physical symptoms such as racing heart or shortness of breath. Treatment focuses on calming the nervous system while addressing underlying thought and behavior patterns.
Intrusive, unwanted thoughts paired with repetitive behaviors or mental rituals. Care is tailored to reduce symptom intensity and improve daily functioning using evidence-based approaches.
Symptoms may include hypervigilance, nightmares, emotional numbness, or irritability following trauma. We provide trauma-informed care that prioritizes safety, regulation, and long-term healing.
Difficulty with focus, organization, impulsivity, or emotional regulation. We offer comprehensive evaluations and personalized treatment plans that support work, relationships, and daily life.
Episodes of depression with periods of elevated or irritable mood. Treatment emphasizes careful diagnosis, mood stability, and long-term management to reduce disruption and relapse.
Trouble falling asleep, staying asleep, or waking unrefreshed. We address sleep issues by treating underlying mental health contributors and using structured, evidence-based strategies.
A non-invasive, FDA-cleared treatment that targets brain regions involved in mood regulation. TMS is medication-free and often used when depression or OCD hasn’t responded to other treatments.
An FDA-approved nasal spray for treatment-resistant depression, administered in a monitored clinical setting. Often covered by insurance and used alongside ongoing psychiatric care.
Why Patients Choose Gilbert Chandler Psychiatric
- Dual-Provider Leadership: Psychiatric care led by a board-certified psychiatrist and an experienced psychiatric nurse practitioner — offering depth, continuity, and collaboration.
- Decades of Clinical Experience: Extensive experience treating complex mood disorders, trauma, OCD, ADHD, and patients who have not found relief with standard treatments.
- Advanced Treatment Options: FDA-cleared TMS therapy, Spravato® (esketamine), medication management, and psychotherapy — all coordinated under one care team.
- Personalised-Person, Non-Rushed Care: Structured visits, careful monitoring, and treatment decisions made with you, not for you.
About Us
Gilbert Chandler Psychiatrists is an integrative psychiatry practice focused on thoughtful, patient-centered care. We work with adults who want more than quick fixes and rushed appointments. Our team takes time to understand your history, symptoms, and goals before recommending treatment.
We combine evidence-based psychiatry with modern treatment options, including advanced therapies when appropriate. Care is collaborative. You are an active part of every decision. Our goal is not just symptom reduction, but long-term stability, clarity, and improved quality of life.
- Patient-First Care: Every treatment plan is personalized. No one-size-fits-all approach.
- Collaboration & Trust: We work with you, not just for you. Decisions are shared.
- Compassion Without Judgment: You are met with respect, curiosity, and understanding.
- Evidence-Based Treatment: We use clinically supported therapies and careful monitoring.
- Long-Term Focus: Relief matters. So does sustainability.
Your first visit starts with a comprehensive psychiatric evaluation. We take time to listen. We ask detailed questions. We focus on understanding the full picture—not just symptoms. You can expect:
- A calm, non-judgmental environment
- Clear explanations and realistic expectations
- Thoughtful treatment planning
- Ongoing follow-ups and adjustments as needed
Care moves at a pace that feels safe and supportive.
We proudly serve patients in Gilbert, Chandler, Scottsdale, Phoenix, and Mesa, Arizona.
In-person and telepsychiatry options may be available depending on the type of care needed. Our locations are designed to feel private, comfortable, and welcoming—so you can focus on your health without added stress.